Film-guide



W. WENDERHOLD.

FILM GUIDE. APPLICATION FILED SEPT. 19, 1917. RENEWED AUG. 20, 1919.

2 SHEETS-SHEET I- IIVI/E/VTOR Patented Mar. 23, 1920.

W. WENDERHOLD.

FILM GUIDE. APPLICATION FILED SEPT. 19, 1917. RENEWED AUG. 20. 1919. 1,334,338.

Patented Mar. 23, 1920.

2SHEEIS-SHEET 2.

.EIEEE Wm MM ATTORNEY HOLD,

f UNITED STATES. PATENT OFFICE.

WILLIKM WENDERHOLD, OF NEW YORK, N. Y., ASSIGN'OB TO CRU PATENTS CORPORA- R TIOH, A CORPORATION OF'NEW YORK.

FILM-GUIDE.

Patented Mar. 23, 1920.

1919. Serial No. 318,767.

1,334,338, Specification of Letters Patent.

Application filed September 19, 1917, Serial No. 192,072. Renewed August 20,

individual pivot 7. The chains themselves are stationary, hanging on one extremity in a suitable support 8. On the other end they terminate pivotally on a yoke 9, which yoke 1s again pivoted in its center upon a slidably mounted bar 10, which bar slides in the sup- To all whom it may concern:

- Be it known that I, WILLIAM WENDER- a citizen of the United States, residing at New York city, in the county and State of New York, have invented certain new and useful Improvements in Film- Guides, of which the following is a clear, full, and exact description. A

This invention relates to film guides and especially to means that will guide a film tape around feed rollers.

The object of my invention is to provide a frictionless flexible guide that is able to conform to or follow any curvature. Heretofore the applied devices consisted either of a brake shoe or of rollers mounted in nonfiexible brackets. I have therefore devised a new form of guide which will be more clearl described hereafter.

..Re erring to the drawing:

Figure 1 is a side elevation of a projecting apparatus containing my guides;

Fig. 2 is a cross-section throughthe guidmeans;

ig. .3 is a front view of the guide means;

Fig. 4 is a view of the guide chains. As shown in Fig. 1, the film F passes around the feed rollers 1 and 2. Thereafter it passes around the usual intermittently driven feed roller 3 and thereafter over the lower feed roller 4.

In my drawings I have illustrated my guide means around the roller 3 only, but it can be applied .to any of the rollers, and also for straight guides. c

My guide means consist of a chain of rollers connected with each other by links 6, the rollers bein larger in diameter than the width of the lin s so that all surfaces in contact with the film are rolling around their 11 around the limit screw 12. The spring is compressed by the adjustment nut 13. It is now easily understood that this roller guide is able to conform to the shape of any feed roller against which it is pressed by means of spring 11. Very great pressure can be brought to bear against the film without said guides acting as a brake and causing wear on the film, as the guide means now in use do, and therefore my invention pression spring 1s a great improvement over existing devices for this purpose.

I claim as my invention:

1. In a motion picture Y device, a guide means for a film consisting of rollers mount ed in links, said links being connected with each other, and a support for the links at one extremity and a yoke on the other extremity, a pivot member supporting said yoke, and a spring providing tension for said yoke, and links, as and for the purpose described. I f

2. In a motion picture device, a guide for a film consisting of-a roller chai'n,'asupport to hold said chain in position, and means to hold said chain flexibly in contact with a WILLIAM WENDERHOLD.

port 8 and is pushed forward by the comfilm, means to bring pressure upon said 

